3D Sketch Fillets inverting

Hi everyone,

I'm experiencing a recurring issue where Sweep Boss features (such as tubing parts) sometimes invert unexpectedly at the fillets in a 3D path sketch. The 3D sketch is fully defined, but the behavior still occurs at curved corners created using fillets.

My question:
Is there a way to fully constrain or control the fillet segments in a 3D sketch to prevent this kind of inversion during the sweep?

Any tips or best practices to ensure consistent orientation through 3D fillets would be greatly appreciated.

Thanks in advance!